These latter features, the hair color, the eye color, carry more uncertainty than the bone-derived features.

Hair goes gray in most people by late middle age, so gray hair for a 50 to 60 year old man is defensible as a default assumption.

Eye color is estimated probabilistically based on what genetic data from the period and region suggests is likely, but the specific eye color of any individual cannot be determined from a skull.

The result is a face that represents the best current estimate of how this specific individual appeared.

It is not a photograph.